Home / 20,138,581.90-30,207,872.85-5,762,118.70

Finding the Fourth Proportional to 20,138,581.90, 30,207,872.85 and 5,762,118.70

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Solution

The fourth proportional to 20,138,581.90, 30,207,872.85 and 5,762,118.70 is: 8,643,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,581.90 : 30,207,872.85 = 5,762,118.70 : x
  2. Step 2: Convert to fraction form
    20,138,581.90/30,207,872.85 = 5,762,118.70/x
  3. Step 3: Cross multiply
    20,138,581.90x = 30,207,872.85 × 5,762,118.70
  4. Step 4: Simplify right side
    20,138,581.90x = 174,061,349,036,207.31
  5. Step 5: Solve for x
    x = 174,061,349,036,207.31/20,138,581.90
  6. Step 6: Final answer
    x = 8,643,178.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.